Gauss-Bonnet formula for metrics with logarithmic singularities on compact Riemann surfaces

Abstract

We prove a generalization of the classical Gauss-Bonnet formula for metrics with logarithmic singularities on compact Riemann surfaces, under the condition that the Gaussian curvature is Lebesgue integrable with respect to the metric's area form. As an application, we establish the Gauss-Bonnet formula for special K\"ahler metrics when their associated cubic differentials are meromorphic on compact Riemann surfaces.